Evidencio validations - Evidencio
External validation of EMTRAS in urban academic level 1 trauma center
The EMTRAS was externally validated in a cohort of trauma patients who were admitted during the period from 2004 to 2010. Patients were treated at the trauma resuscitation room in an urban level 1 trauma center in the Netherlands. Data were derived from the prospectively collected trauma registry.
Research authors: Joosse P, de Jong WJ, Reitsma JB, Wendt KW, Schep NW, Goslings JC.
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Discrimination

Rows included 0
C-index 0.94 ROC
Brier score Not specified
Scaled Brier score Not specified

Classification plot

Not specified

Calibration

Regression coefficient 0
Intercept 0
Hosmer-Lemeshow GOF Not specified
 

Calibration plot

Histogram

Not specified

Decision curve

Not specified
Comparison
Original study population: 11533
Validation study population: 3001

Categorical characteristics

Name Subset / Group Nr. of patients Validation P-Value
Gender Female 3068 870 0.0092
Male 8465 2131
Mortality Alive 9007 2800 < 0.0001
Death 2526 201

Continuous characteristics

Name Mean SD Unit Plot
Original Validation Age 42.3
42.2
19.2
18.7
years
Original Validation Injury severity score 30.1
12.8
12.5
11.4
ISS
Original Validation Glasgow Coma Scale 10
13
4.9
4
GCS
Original Validation Base excess -3.3
-2.5
5.4
4.6
mmol/l
Original Validation Prothrombin time 73.9
97
23.6
15
%
Original Validation Systolic blood pressure 119
138
32
28
mmHg
Original Validation Heart rate 91
87
24
20
bpm
Original Validation Hemoglobin saturation 97
98
6
7
%
Original Validation Respiratory rate 14.9
17
5.4
6
bpm
Original Validation Hemoglobin 11.0
8.1
3.2
1.3
g/dL
Original Validation Platelet count 190
230
82
71
x10^9/l
Original Validation APTT 38.8
31.7
24.1
20.8
sec
Original Validation Lactate 5.3
3.0
8.6
3.0
mmol/l
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